Demonstration of a current-controlled three-terminal Nb–InxGa1−xAs/InP Josephson contact
Demonstration of a current-controlled three-terminal Nb–InxGa1−xAs/InP Josephson contact
复制标题
电流控制三端 Nb–InxGa1−xAs/InP 约瑟夫森接触演示
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
A. Golubov
中科院分区：
文献类型：
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作者：
T. Schäpers;J. Malindretos;K. Neuróhr;S. Lachenmann;A. V. Hart;G. Crecelius;H. Hardtdegen;H. Lüth;A. Golubov
Nb-In_（0. 53）Ga_（0. 47）As/In_（0. 77）Ga_（0. 23）As/InP弱连接结构中的超电流是由注入到二维电子气中的电流控制的。对于小的注入电流，临界电流与控制电流之比为20。测量的功能可以定性地解释在由注入的载流子的Andreev电平占用的修改。
The supercurrent in a Nb–In0.53Ga0.47As/In0.77Ga0.23As/InP weak link structure is controlled by means of a current injected into the two-dimensional electron gas. For small injection currents the critical current to control current ratio is as large as 20. The measured features can be qualitively explained in terms of a modification of the Andreev level occupation by the injected carriers.